NCT05255224

Brief Summary

The PARADISE study aims to develop and validate prediction tools to identify patients at risk of Atrial Fibrillation (AF) after cardiac surgery.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
13,684

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Oct 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2021

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

February 7, 2022

Completed
17 days until next milestone

First Posted

Study publicly available on registry

February 24, 2022

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2025

Completed
Last Updated

January 23, 2025

Status Verified

January 1, 2024

Enrollment Period

3.7 years

First QC Date

February 7, 2022

Last Update Submit

January 22, 2025

Conditions

Keywords

New Onset Atrial FibrillationCardiac Surgery

Outcome Measures

Primary Outcomes (3)

  • Model discrimination (c-statistic) to predict Atrial Fibrillation in external data set

    Model discrimination (c-statistic) to predict Atrial Fibrillation in external data set

    Within 7 days of cardiac surgery

  • Model calibration (intercept) to predict Atrial Fibrillation in external data set

    Model calibration (intercept) to predict Atrial Fibrillation in external data set

    Within 7 days of cardiac surgery

  • Model calibration (slope) to predict Atrial Fibrillation in external data set

    Model calibration (slope) to predict Atrial Fibrillation in external data set

    Within 7 days of cardiac surgery

Secondary Outcomes (2)

  • Additional model performance metrics to predict Atrial Fibrillation in external data set

    Within 7 days of cardiac surgery

  • Candidate risk factors for inclusion in new onset atrial fibrillation prognostic models

    Within 7 days of cardiac surgery

Study Arms (2)

Retrospective

Patients admitted to Mass Brigham Hospitals for cardiac surgery from 1st January 1998 to 31st December 2020

Other: Not applicable as observational study

Prospective

Patients admitted to Barts Health, Liverpool Heart and Chest Hospital, or Oxford University Hospitals NHS Foundation Trust for cardiac surgery between 1st October 2021 to 31st July 2023

Other: Not applicable as observational study

Interventions

Not applicable as observational study

ProspectiveRetrospective

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients who have undergone cardiac surgery

You may qualify if:

  • Patients 18 years or over
  • Admitted to hospital for any cardiac surgery

You may not qualify if:

  • Patients who have requested that their data not be used for research (e.g. NHS Opt-out)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Critical Care Research Group, Nuffield Department of Clinical Neurosciences, University of Oxford

Oxford, Oxfordshire, OX3 9DU, United Kingdom

Location

Related Publications (1)

  • Bedford J, Fields KG, Collins GS, Lip GYH, Clifton DA, O'Brien B, Muehlschlegel JD, Watkinson PJ, Redfern OC. Atrial fibrillation after cardiac surgery: identifying candidate predictors through a Delphi process. BMJ Open. 2024 Sep 25;14(9):e086589. doi: 10.1136/bmjopen-2024-086589.

MeSH Terms

Interventions

Observation

Intervention Hierarchy (Ancestors)

MethodsInvestigative Techniques

Study Officials

  • Peter Watkinson, MD

    University of Oxford

    PRINCIPAL INVESTIGATOR
  • Benjamin O'Brien, MD

    Deutsches Herzzentrum der Charité

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 7, 2022

First Posted

February 24, 2022

Study Start

October 1, 2021

Primary Completion

May 31, 2025

Study Completion

May 31, 2025

Last Updated

January 23, 2025

Record last verified: 2024-01

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be made publicly available due to privacy and legal implications.

Locations